start regulation by positioning the cock valve ( ) handle on port auto. . open fully the upstream isolating valve and slowly open the downstream isolating valve, to fill-up, carefully, the consumers' line downstream from the valve. . vent air from the valve's control loop by loosening cover tube fitting...
valve, confirm hydraulic pressure command in the hydraulic relay ( -m). . open fully the upstream isolating valve and slowly open the downstream isolating valve, to fill-up, carefully, the consumers' line downstream from the valve. . vent air from the valve's control loop by loosening cover tube fitting...
hydraulic relay ( -pz) manual override, or by hydraulic pressure command. . open fully the upstream isolating valve and slowly open the downstream isolating valve, to fill-up, carefully, the consumers' line downstream from the valve. . vent air from the valve's control loop by loosening cover tube fitting...